1 /*
2  * Copyright (C) 1999 Lars Knoll <knoll@kde.org>
3  * Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
4  * Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
5  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
6  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights reserved.
7  * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Library General Public
11  * License as published by the Free Software Foundation; either
12  * version 2 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * Library General Public License for more details.
18  *
19  * You should have received a copy of the GNU Library General Public License
20  * along with this library; see the file COPYING.LIB.  If not, write to
21  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22  * Boston, MA 02110-1301, USA.
23  *
24  */
25 
26 #ifndef RenderImageResource_h
27 #define RenderImageResource_h
28 
29 #include "CachedImage.h"
30 #include "CachedResourceHandle.h"
31 #include "Image.h"
32 #include "StyleImage.h"
33 
34 namespace WebCore {
35 
36 class RenderObject;
37 
38 class RenderImageResource {
39     WTF_MAKE_NONCOPYABLE(RenderImageResource); WTF_MAKE_FAST_ALLOCATED;
40 public:
41     virtual ~RenderImageResource();
42 
create()43     static PassOwnPtr<RenderImageResource> create()
44     {
45         return adoptPtr(new RenderImageResource);
46     }
47 
48     virtual void initialize(RenderObject*);
49     virtual void shutdown();
50 
51     void setCachedImage(CachedImage*);
cachedImage()52     CachedImage* cachedImage() const { return m_cachedImage.get(); }
hasImage()53     virtual bool hasImage() const { return m_cachedImage; }
54 
55     void resetAnimation();
56 
57     virtual PassRefPtr<Image> image(int /* width */ = 0, int /* height */ = 0) const { return m_cachedImage ? m_cachedImage->image() : nullImage(); }
errorOccurred()58     virtual bool errorOccurred() const { return m_cachedImage && m_cachedImage->errorOccurred(); }
59 
60     virtual void setImageContainerSize(const IntSize& size) const;
usesImageContainerSize()61     virtual bool usesImageContainerSize() const { return m_cachedImage ? m_cachedImage->usesImageContainerSize() : false; }
imageHasRelativeWidth()62     virtual bool imageHasRelativeWidth() const { return m_cachedImage ? m_cachedImage->imageHasRelativeWidth() : false; }
imageHasRelativeHeight()63     virtual bool imageHasRelativeHeight() const { return m_cachedImage ? m_cachedImage->imageHasRelativeHeight() : false; }
64 
imageSize(float multiplier)65     virtual IntSize imageSize(float multiplier) const { return m_cachedImage ? m_cachedImage->imageSize(multiplier) : IntSize(); }
66 
imagePtr()67     virtual WrappedImagePtr imagePtr() const { return m_cachedImage.get(); }
68 
69 protected:
70     RenderImageResource();
71     RenderObject* m_renderer;
72     CachedResourceHandle<CachedImage> m_cachedImage;
73 
74 private:
75     static Image* nullImage();
76 };
77 
78 } // namespace WebCore
79 
80 #endif // RenderImage_h
81